Sory about the misunderstanding. I want to run just one additional display, an Apple 30" Cinema HD. Will theImac 21.5" 2.7Ghz comfortably manage this?

If you're only looking to run one external display...then yes...no problem running the 30" Cinema Display with the 21.5" iMac.

But...for just a couple hundred more $$$...you could get the 27" iMac. You then get the 27" display...and could run both of your monitors (20" & 30").

- Nick

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